package come.demo.demotinker;

import android.content.Context;
import android.widget.Toast;

/**
 * Created by Administrator on 2018/4/16.
 */

public class Utils {
    void test(Context context) {
        Toast.makeText(context, "aaaaaaaaaaaa", Toast.LENGTH_SHORT).show();
//        throw new NullPointerException("exceptions");
    }

}

